I plan to post a couple of summaries over the next hour or so:
First I reinstalled from source on the two 17.04 vms mentioned in previous posts, following the instructions on the "docu" page on ngsolve.org, except I replaced:
git clone git://git.code.sf.net/p/ngsolve/git ngsolve-src
with
git clone
github.com/NGSolve/ngsolve.git
ngsolve-src
per Joachim's post. As before, netgen was installed; not ngsolve - on both vms.
In short, I can read/process geo files, though the output file cannot be read/processed. So, I cannot read and mesh "mesh files":
The terminal exchange for processing a geo file is:
netgen -batchmode -geofile=cube.geo
NETGEN-6.2-dev
Developed by Joachim Schoeberl at
2010-xxxx Vienna University of Technology
2006-2010 RWTH Aachen University
1996-2006 Johannes Kepler University Linz
optfile ./ng.opt does not exist - using default values
togl-version : 2
no OpenGL
Load CSG geometry file cube.geo
Calc Triangle Approximation
Object 0 has 1076 triangles
Start Findpoints
Analyze spec points
Find edges
Start Findpoints
Analyze spec points
Find edges
Start Findpoints
Analyze spec points
Find edges
Surface 1 / 6
Optimize Surface
Surface 2 / 6
Optimize Surface
Surface 3 / 6
Optimize Surface
Surface 4 / 6
Optimize Surface
Surface 5 / 6
Optimize Surface
Surface 6 / 6
Optimize Surface
Meshing subdomain 1 of 1
Delaunay meshing
start tetmeshing
Success !
9 points, 11 elements
Remove Illegal Elements
Volume Optimization
Meshing done, time = 0.024819 sec
Save mesh to file out.mesh.... Please Wait!
Save mesh to file .... DONE!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Unfortunately,
netgen -batchmode -inputmeshfile=out.mesh -meshfile=out_2.mesh
results in an "empty file" - no points, etc..
I note that there are a couple of suspicious numbers in out.mesh. (From the first command.) The relevant section of the file is:
# surfid 0 p1 p2 trignum1 trignum2 domin/surfnr1 domout/surfnr2 ednr1 dist1 ednr2 dist2
edgesegmentsgi2
24
1 0 1 4 546802052 1 1 3 1 0 0 0
2 0 4 1 546802052 1 1 3 1 0 0 0
3 0 8 7 0 7 5 6 2 0 0 0
Regards,
Tim